[填空题]
A cyclist accelerates fromc 3eyzr1f98qd-l) ne c rest at a rat6cn :c+/m ;gblz vn i-*d uldvap:n6r;e of 1 m/$s^2$ How fast will a point on the rim of the tire at the top be moving after 3.0 s? [Hint: At any moment, the lowest point on the tire is in contact with the ground and is at rest — see Fig. 8–51.] $m/s$